| | ||||||||
| | ||||||||
|
|
|
| ENERGY MANAGEMENT SYSTEMS AND SCADA APPLICATIONS Establishment of modern control centers equipped with supervisory control and data acquisition (SCADA) infrastructure and Energy Management System (EMS) allowed system operators to monitor the power system state and take preventive actions when necessary based on anticipated contingencies. The concept of steady state security has been at the center of power system operation for the past several decades. This approach to system operation is very effective as long as all possible contingencies can be anticipated and the required preventive controls can be implemented in a timely fashion. Uncertainties in power system operation and cascading failures may, however, lead to situations where existing security measures can not cope. In such a case, the system will be driven into an emergency state and the control actions are typically local, initiated by the protection system at the substations. The conventional state estimator will not be functional temporarily until a new post disturbance steady state is reached. An alternative paradigm for maintaining system security is developed, where a fast tracking tool is used to predict the short term trajectory of the system state and attempt to navigate the state back into the secure normal operating region via system wide coordinated real-time controls. While this is easier said than done, one of the prerequisites for its success is faster and more detailed monitoring of both the dynamic system state and system topology. An integrated data and information exchange system to be implemented using advanced IT solutions will provide this capability at various levels of detail depending upon the application requirement. How to translate this broad view of the benefits of exploring a different use of data and information becomes clearer when the existing infrastructures for data collection and information processing are analyzed in more detail. As a result, new uses of data and information may be defined producing new value for the users. For more information please visit Publications page . |
| |
